The man who claimed responsibility for the murder of two television news employees on a live-shot in southwest Virginia left a 23-page manifesto of the reasons for his actions.

ABC News is reporting that a few weeks ago, a man identifying himself as Bryce Williams asked for the fax number for the national newsroom. Today it received a document two hours after the on-air killings.

“A little after 10 a.m., he called again, and introduced himself as Bryce, but also said his legal name was Vester Lee Flanagan, and that he shot two people this morning. While on the phone, he said authorities are ‘after me,’ and ‘all over the place.’ He hung up. ABC News contacted the authorities immediately and provided them with the fax,” according to the news outlet.

In his manifesto, Flanagan listed racism, and particularly his treatment as a “gay, black man,” as the reason for his actions, which he said were inspired by “Jehovah.” He said the Charleston shootings put him over the edge. Two days after the tragedy, he purchased a gun.

“The church shooting was the tipping point…but my anger has been building steadily…I’ve been a human powder keg for a while…just waiting to go BOOM!!!!” Flanagan wrote.

The alleged murderer added: “As for Dylann Roof? You (deleted)! You want a race war (deleted)? BRING IT THEN YOU WHITE…(deleted)!!!” He indicated he etched the initials of each of the victims (presumably of the Charleston shooting) on his hollow-tipped bullets.

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Flanagan also praised the actions of the Virginia Tech shooter: “Also, I was influenced by Seung–Hui Cho. That’s my boy right there. He got NEARLY double the amount that [Columbine shooters] Eric Harris and Dylann Klebold got…just sayin.”

Following the murder of CBS affiliate WDBJ reporter Alison Parker and cameraman Adam Ward, Flanagan tweeted that Parker has made “racist comments” and Ward reported him to HR after working with him one time.

Jeffrey Marks, WDBJ’s president and general manager, told Fox News that Flanagan had to be escorted out of the building by police after he was fired for substandard job performance and anger issues. Marks described him as “an unhappy man” and “difficult to work with,” always “looking out for people to say things he could take offense to.”